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20120928
20121006
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in the science fair together. >>reporter: they applied their skills to find way to save their school and livermore valley joint unified school district tens of thousands of dollars in energy cost. something the class 1936 never had to worry about. >> it's maybe steps to take to be different. what you have to do every light switch counts e-for example this lamp is older system. it's about one and a half inches in diameter and uses more energy than newer model. >> they know it best and they can help us out with specific count and information. >>reporter: mroj equity made possible by pg&e innovator pilot program where engineers by duane brought on to board to do an energy ahead it. he was teased with those who know the campus best. >> that measure we identified was about 100,000 kwh annual savings which is 14,000 dollars for the school each year they would save. >>reporter: students were able to identify more than 45 quad lamp. multiple thermostat and old computers outdated and simply sucking up too much energy to be cots effective in today classroom. simple upgrade an opportunit
. most people understand how easy it is to break a heart but how about making one? t health science reporter carolyn johnson looks at blue print on how we treat heart and print on how we treat heart and heart disease >> even through a microscope there is no miss taking the rift mick beating. living heart cell were created in a bay area lab and help researchers unlock the secret of how a heart becomes a heart. >> helps to have a blue print. to know what switches exist. how they are connected and what they turn on or shut off. >> so bruno and his team at san francisco glad stone institute set out to map the genetic switches locked inside the dna of of stem cell to see how a stem cell becomes a heart cell. >> with these the modification are doing is they are setting the right switches to turn gene on or off so that a heart cell in this case gains its heart identity. >>reporter: to begin researchers jeffrey alexander coax millions of stem cell taken from mice into becoming beating heart cell, process didn't in petrie dish and they mimic the environment in the woom. not always a pre-s
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